5² × 13 × 23²

Prime Factor Structure

Factorization String 5^2 × 13 × 23^2

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 240,002

Proper Divisor Sum 68,077

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #171923 ← → #171929

1 5 13 23 25 65 115 299 325 529 575 1,495 2,645 6,877 7,475 13,225 34,385 171,925

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

171,925 515,776 257,888 128,944 64,472 32,236 16,118 8,059 24,178 12,089 36,268 18,134 9,067 27,202 13,601 40,804 20,402 10,201 30,604 15,302 7,651 22,954 11,477 34,432 17,216 8,608 4,304 2,152 1,076 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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